求翻译：1952年设立在盐湖城的首家被授权经营的肯德基餐厅建立。在短短５年内，他在美国及加拿大已发展了400家的连锁店。1955年，肯德基有限公司正式成立。是什么意思？

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In 1952 set up in Salt Lake City's first is been authorized the management the Kentuckey dining room establishment.In the short 5 years, he has developed 400 chain stores in US and Canada.In 1955, the Kentuckey limited company had been established officially.

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Set up in Salt Lake City in 1952 the first KFC restaurant was authorized to operate the establishment. In just five years, he has developed in the United States and Canada has 400 chain stores. In 1955, KFC Co., Ltd. was officially established.